Statement Of Financial Position [Abstract]
| Concept |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2025-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2024-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
As at 2023-03-31 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Statement of financial position [abstract] | ||||||||||||||||||||||||||||||
| Assets [abstract] | ||||||||||||||||||||||||||||||
| Non-current assets [abstract] | ||||||||||||||||||||||||||||||
| Property, plant and equipment |
2 720
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 756
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Goodwill |
9 120
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
9 093
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Intangible assets other than goodwill |
1 978
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
2 268
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Investments accounted for using equity method |
871,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
882,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax assets |
689,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
673,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current assets |
15 972
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
16 243
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current assets [abstract] | ||||||||||||||||||||||||||||||
| Current inventories |
4 151
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3 818
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current financial assets |
61,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
40,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other current non-financial assets |
3 307
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
3 515
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Cash and cash equivalents |
2 274
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
976,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — |
826,000,000
EUR
|
— | — |
| Current assets other than non-current assets or disposal groups classified as held for sale or as held for distribution to owners |
18 594
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
16 319
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Assets |
34 586
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
33 253
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities [abstract] | ||||||||||||||||||||||||||||||
| Equity [abstract] | ||||||||||||||||||||||||||||||
| Equity attributable to owners of parent |
10 464
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
8 672
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-controlling interests |
113,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
106,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity |
10 577
EUR
|
113,000,000
EUR
|
5 870
EUR
|
268,000,000
EUR
|
3 231
EUR
|
10 464
EUR
|
-
EUR
|
750,000,000
EUR
|
870,000,000
EUR
|
524,000,000
EUR
|
8 672
EUR
|
272,000,000
EUR
|
5 486
EUR
|
2 690
EUR
|
-
EUR
|
106,000,000
EUR
|
8 778
EUR
|
3,000,000
EUR
|
741,000,000
EUR
|
520,000,000
EUR
|
8 997
EUR
|
406,000,000
EUR
|
5 445
EUR
|
2 663
EUR
|
-
EUR
|
1 134
EUR
|
1,000,000
EUR
|
9 102
EUR
|
105,000,000
EUR
|
650,000,000
EUR
|
| Liabilities [abstract] | ||||||||||||||||||||||||||||||
| Non-current liabilities [abstract] | ||||||||||||||||||||||||||||||
| Non-current provisions [abstract] | ||||||||||||||||||||||||||||||
| Non-current provisions for employee benefits |
935,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
946,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Other non-current provisions |
427,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
539,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Deferred tax liabilities |
75,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
91,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Non-current liabilities |
4 755
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
4 741
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities [abstract] | ||||||||||||||||||||||||||||||
| Current provisions [abstract] | ||||||||||||||||||||||||||||||
| Other current provisions |
1 529
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
1 612
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Current liabilities other than liabilities included in disposal groups classified as held for sale |
19 254
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
19 611
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Liabilities included in disposal groups classified as held for sale |
-
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
123,000,000
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |
| Equity and liabilities |
34 586
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — | — | — |
33 253
EUR
|
— | — | — | — | — | — | — | — | — | — | — | — | — |